Rules pausing midway

I have a number of rules sorting files that I send out to clients into folders and renaming.
-Files are sorted into folders and renamed
-Then I ask hazel to note there names into a text file
echo ${1##*/} >> /Volumes/LIVEWORK/04_SENDING/includedFiles.txt
Currently some of the files are sorted and others have to wait for next hazel cycle...
Log shows...
2021-06-03 11:21:45.882 hazelworker[2436] File includedFiles.txt is busy. Skipping for now.
Any idea how to remedy this??
-Files are sorted into folders and renamed
-Then I ask hazel to note there names into a text file
echo ${1##*/} >> /Volumes/LIVEWORK/04_SENDING/includedFiles.txt
Currently some of the files are sorted and others have to wait for next hazel cycle...
Log shows...
2021-06-03 11:21:45.882 hazelworker[2436] File includedFiles.txt is busy. Skipping for now.
Any idea how to remedy this??